Finding the Fourth Proportional to 718,734,349.08, 1,075,892,311.96 and 612,703,646.54
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Solution
The fourth proportional to 718,734,349.08, 1,075,892,311.96 and 612,703,646.54 is: 917,172,170.31
Step by Step Solution
- Step 1: Write the proportion equation
718,734,349.08 : 1,075,892,311.96 = 612,703,646.54 : x - Step 2: Convert to fraction form
718,734,349.08/1,075,892,311.96 = 612,703,646.54/x - Step 3: Cross multiply
718,734,349.08x = 1,075,892,311.96 × 612,703,646.54 - Step 4: Simplify right side
718,734,349.08x = 659,203,142,819,179,648 - Step 5: Solve for x
x = 659,203,142,819,179,648/718,734,349.08 - Step 6: Final answer
x = 917,172,170.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.